of Protists: Eukaryotic Most unicellular, some multicellular Some have a cell wall, some do not Some are motile, some are not Some have pigments, some do not Many different feeding methods (phototrophic, heterotrophic, etc.) Most aerobic No complex sex organs – no embryos Lack specialized features of fungi, animals and plants Classifying Protists: Three groups,…
Bacteria are prokaryotic and unicellular (although some join together to form colonies or link up in chains). When people think of bacteria, they immediately think of diseases – but disease-causing bacteria only make up a small fraction of all bacteria. Bacteria play an important role in ecosystems (decomposers, nitrogen fixation), and in edible products (cheese,…
Organisms in Archaea live in extreme conditions, such as: Very hot (hot springs, volcanoes, sea floor vents) Very cold Acidic Alkaline Salty High pressure All Archaea are prokaryotic and live in anaerobic conditions (no oxygen) … they obtain the energy they require from inorganic molecules or from light. Originally, organisms from the Archaea were classified…
Always start on low power with a clean slide. The stage of the microscopes should be down as low as possible. Centre the slide so the specimen is underneath the objective lens. Use the Coarse adjustment knob to obtain a general focus. You will be slowly raising the stage until a focus is achieved. Use…
All things are made up of molecules When things get heated, they absorb heat energy With more energy, molecules are able to move faster When molecules move faster, the temperature rises What is Thermal Energy Thermal Energy is energy resulting from the motion of particles It is a form of kinetic energy and is transferred…
SOME MAJOR BENEFITS A larger, stronger, and more efficient heart muscle Decrease in your resting heart rate Increase in your VO2max Healthier blood vessels Increase in the number of capillaries in muscle and lungs Increase in blood volume and red blood cell (RBC) count Decrease in low density lipoprotein (LDL) and increase in high density…
NUTRITION The study of the nutrients in foods and of the body’s handling of them. This includes ingestion, digestion, absorption, transport, metabolism, interaction, storage, and excretion. FOOD Material containing nutrients taken into the body for the maintenance of life and the growth and repair of tissues. NUTRIENTS Substances obtained from food and used in the…
THE PRINCIPLE OF INDIVIDUALITY (aka INDIVIDUAL DIFFERENCES) Any training program must take into account the specific needs and abilities of the individuals for whom it is designed -we are not created equal with respect to adapting to exercise training -heredity plays a major role; except for identical twins, no 2 people have the same genetic…
The study of the mechanisms by which the body functions Anatomy was the forerunner of physiology Study how our organ systems, tissues, cells, and molecules within cells work and how their functions are integrated to regulate our internal environments Exercise physiology The study of how our bodies’ structures and functions are altered when we are…
For human beings, the more we perform almost any skill, the better we become at it. In addition, as we physically grow and develop, our ability to master increasingly complicated skills is enhanced. Motor Learning the process by which a person develops, through a combination of physical and psychological factors, the ability to perform a…
The earth, its relation to the stars and planets, and speculations as to its origin attracted human curiosity long before the birth of the geological sciences. Although such studies fall more properly within the realm of astronomy,’ a brief survey of the earth and its planetary relations will provide the reader with some understanding of…
The earth is but one of nine planets which make up our solar system. But to humans Earth is by far the most important of all planets, for it is our home. It is also, so far as we know, the only planet which supports any type of life. Whence came the earth? How and…
The earth consists of air, water, and land. We recognize these more technically as the atmosphere, a gaseous envelope surrounding the earth; the hydrosphere, the waters filling the depressions and covering almost 71 percent of the earth; and the lithosphere, the solid part of the earth which underlies the atmosphere and hydrosphere. The Atmosphere. The…
THE LITHOSPHERE The part of the earth that is made up of rocks and minerals, consists of the uppermost layers of the earth Came into being billions of years ago and still continues to change and evolve Changes to the worlds land masses, tectonic plates Volcanoes, earthquakes THE HYDROSPHERE The part of the earth made…
What is light? A form of energy that the Sun emits in all directions Properties of Light Light travels in straight lines: Light travels VERY FAST – around 300,000, 000 metres per second. (3.0 x 108 m/s) Light travels much faster than sound. For example: Light energy is transferred through radiation RADIATION A method of…
Geocentric view: Earth-centered view. (600BC – 150 AD) Came from the belief that God created humans at center and everything moved in perfect divine circles. Earth was a sphere that remained motionless at center of the universe Sun, Moon, Mercury, Venus, Mars, Jupiter and Saturn orbited earth in circles Stars traveled around the earth on…
A material that lets electrons flow through it is called a CONDUCTOR The molecules of all types of conductors resist the flow of electrons to some degree ELECTRICAL RESISTANCE is a measure of how easy or hard it is for electric current to move through a material Conductors have low resistance Insulators have high resistance…
Energy can be defined as the ability to do work. Electrons possess energy and this energy can be converted to another form to do work (make a lightbulb shine, motor run, etc). This energy is called electric potential energy. Definitions: Electric potential energy: energy that the battery gives to the electrons; the amount of energy…
There are four major types of industry in Canada/USA/Europe. Primary, Secondary, Tertiary and Quaternary. Primary Industries Industries that take in raw materials from the natural environment. Also known as extractive industries. (known as primary because extraction or removal of natural resources must happen before anything else can be made. Everything comes from the earth) Primary…
80 % of Canadians live in cities cities are broken up into 6 major land-use groups – residential, transportation, institutional and public buildings, open space and recreational land, industrial, and commercial Residential Land Use Where people live includes low (houses), medium (town houses) and high density (apartment buildings) Takes up 40% of land in cities…